Changes in namelists in SURFEX V9.1.0

 
Changes are detailed by contribution.
- New keys are in black
- Keys removed in red
- Keys modified (new options, options removed, changes of default values, name changed, change of namelist) in orange
- New namelist in green

  • NAM_ISBA
    • NSAND_LAYER: number of sand layers. Equal to 1 if CISBA = "2-L" or "3-L". Must be equal to 1 or to the number of ground layers if CISBA="DIF".
    • NCLAY_LAYER: number of clay layers. Equal to 1 if CISBA = "2-L" or "3-L". Must be equal to 1 or to the number of ground layers if CISBA="DIF".
    • CGNDRES : to activate baresoil evaporation resistance options
  • NAM_MEB_ISBA :
    • LMEB_GNDRES is removed (replaced by CMEB_GNDRES)
    • CMEB_GNDRES : Activates baresoil evaporation resistance options
    • LMEB_TALL_VEG : To use vegetation height as a major variable to calculate maximum snow load on trees and turbulent fluxes.
    • LMEB_INT_PLUN : If True, to use the (Lundquist et al., 2021) intercepted snow melt formulation. The snow intercepted by the trees melts faster than using the classical config.
    • LMEB_INT_ULUN : If True, to use the snow unloading scheme of (Lundquist et al., 2021). This scheme is globally slowing the solid unloading, which favors snowmelt and sublimation of the intercepted snow as it stays a bit longer on the branches.
    • LMEB_INT_USFC : To separate snow unloading from snowfalls in Crocus fresh snow incorporation.
  • NAM_ISBAn
    • CZ0HEAT : roughness length for heat
    • XZ0HEAT : factor to calculate Z0H when CZ0HEAT="Z95"
  • NAM_PREP_ISBA
    • XHUG_SURF is removed (replaced by XUNIF_HUG_SOIL)
    • XHUG_ROOT is removed (replaced by XUNIF_HUG_SOIL)
    • XHUG_DEEP is removed (replaced by XUNIF_HUG_SOIL)
    • XHUGI_SURF is removed (replaced by XUNIF_HUGI_SOIL)
    • XHUGI_ROOT is removed (replaced by XUNIF_HUGI_SOIL)
    • XHUGI_DEEP is removed (replaced by XUNIF_HUGI_SOIL)
    • CFILE_HUG_SURF is removed (replaced by CFILE_HUG_SOIL)
    • CFILE_HUG_ROOT is removed (replaced by CFILE_HUG_SOIL)
    • CFILE_HUG_DEEP is removed (replaced by CFILE_HUG_SOIL)
    • XTG_SURF is removed (replaced by XUNIF_TG_SOIL)
    • XTG_ROOT is removed (replaced by XUNIF_TG_SOIL)
    • XTG_DEEP is removed (replaced by XUNIF_TG_SOIL)
    • CFILE_TG_SURF is removed (replaced by CFILE_TG_SOIL)
    • CFILE_TG_ROOT is removed (replaced by CFILE_TG_SOIL)
    • CFILE_TG_DEEP is removed (replaced by CFILE_TG_SOIL)
    • XUNIF_HUG_SOIL : uniform prescribed value for soil wetness index profile
    • XUNIF_HUGI_SOIL : uniform prescribed value for ice soil water index profile
    • XUNIF_TG_SOIL : uniform prescribed value for soil temperature profile
    • CFILE_HUG_SOIL : input file name for Wg, Wgi. The dimension of this key is (NVEGTYPE, NGROUND_LAYER)
    • CFILE_TG_SOIL :input file name for TG. The dimension of this key is (NVEGTYPE, NGROUND_LAYER)
  • NAM_DIAG_FLAKEn
    • LSEDIM_PROFIL : flag for sediment diagnostics
    • XZSED_PROFILE : depth of output levels (m) in namelist
    • LFLKFLUX : flag for heat and radiative diagnostics
    • LFLKWATER : flag for water budget P-E diagnostics
  • NAM_IO_OFFLINE
    • CSPECSNOW (removed, replaced by CSPECSNOW)
    • LSPECSNOW (before CSPECSNOW)
    • LFIX_OUTPUT : logical to force diags output each day at hours that are multiple from the XSTEP_OUTPUT
  • NAM_SURF_SNOW_CSTS
    • XPERCENTAGEPORE_FRZ
    • XIMPUR_WET : corresponds to the initial amount of Light-Absorbing Particles (LAP) present in the falling snow (wet deposition) for each impurity type
    • XIMPUR_DRY : corresponds to the dry deposition coefficient (always activated) at top of snowpack (in g/m2/s) for black carbon (XIMPUR_DRY(1)), dust (XIMPUR_DRY(2)), and other types of impurities (XIMPUR_DRY(3:5))
    • XIMPUR_INIT removed
    • XIMPUR_COEF removed
    • XPR_A : Adjustable coefficients depending on snow-gun type (Hanzer et al., 2014).
    • XPR_B : Adjustable coefficients depending on snow-gun type (Hanzer et al., 2014).
    • XPT : Water consumption threshold during base-layer generation production period
    • XPP_D1 : Day of beginning of base-layer generation production period. For CROCUS resort only.
    • XPP_D2 : Day of end of base-layer generation production period. For CROCUS resort only.
    • XPP_D3 : Day of end of reinforcement production period. For CROCUS resort only.
    • XPP_H1 : Hour of beginning of base-layer generation production period (in seconds, from midnight). For CROCUS resort only.
    • XPP_H2 : Hour of end of base-layer generation production period (in seconds, from midnight). For CROCUS resort only.
    • XPP_H3 : Hour of beginning of reinforcement production period (in seconds, from midnight). For CROCUS resort only.
    • XPP_H4 : Hour of end of reinforcement production period (in seconds, from midnight). For CROCUS resort only.
    • XWT : Wind speed threshold for snowmaking (m/s)
    • XPTR : Total (natural+machine-made) snow height threshold during reinforcement production period (m)
    • XSCAVEN_COEF : percentage of impurity leaving with percolating water
    • XAGELIMPAPPUS : maximum age (days) of snow layer for which wind speed threshold is set to fresh threshold wind speed
    • XWINDTHRFRESH : 5m wind speed threshold for transport of freshly fallen (or deposited) snow
    • XRHODEPPAPPUS : density (kg.m-3) of wind blown deposited snow
    • XDIAMDEPPAPPUS : optical diameter (m) of wind blown deposited snow
    • XSPHDEPPAPPUS : sphericity of wind blown deposited snow
    • XLFETCHPAPPUS : constant fetch distance applied to all points for snowpappus blowing snow flux calculation (m)
    • XAGELIMPAPPUS2 : maximum age (in days) of snow for using Naaim96 formulation of terminall fall speed in snowpappus
    • XDEMAXVFALL : maximum dendricity to have pure young snow fall speed, when option MIXT is chosen for terminal fall speed calculation
    • XCROCOEF_FF: to have the possibility to change the coefficient for gust diagnosis from average wind
  • NAM_ISBA_SNOW
    • CSNOWMOB : To choose the way threshold wind speed is computed in SnowPappus when surface snow age is superior to the threshold value XAGELIMPAPPUS
    • LSNOWPAPPUS : key to activate SnowPappus option.
    • CSNOWPAPPUSERODEPO : determines how the deposition flux is computed.
    • CSNOWFPAPPUS : overcomes ’CSNOWDRIFT’ to select falling snow microstructure.
    • CPAPPUSSUBLI : to choose different parameterizations of blowing snow sublimation rate in SnowPappus
    • CSALTPAPPUS : option for saltation transport in SnowPappus
    • CLIMVFALL : option to decide what is old or new snow for fall speed calculation
    • OPAPPULIMTFLUX : if True, snow transport flux limitation activated.
    • OPAPPUDEBUG : if True, triggers snowpappus debug mode.
  • NAM_DIAG_ISBAn
    • LSPECMOD : flag fot snow modis spectral bands diagnostic
  • NAM_ASSIM
    • CASSIM_ISBA : new option ’PF’ (for Particle Filter activation in SODA)
    • LCROCO : Activation of assimilation for snow scheme Crocus
    • CPF_CROCUS : Select the PF (Particle Filter) algo
    • NEFF_P : set the target effective sample size for the PF with inflation
    • XDLOC_PF : localisation distance (degrees) for the RLOCAL particle filter
    • LLOO_PF : activate leave-one-out experiments with the PF (exclude local observations)
  • NAM_VAR
    • XTAUSCF : value for the tau parameter of the depletion curve used to retrieve model SCF from bulk SWE (default=4)
    • XCEILSCF : value for the ceil SWE of the depletion curve (default=20mm)
  • NAM_OBS
    • COBS_M : new options possible
    • XERROBS_FACTOR_M : magnification factor for obs errors in PF

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